/* ═══════════════════════════════════════
   playground.css — Real NexusIDE AI Playground
═══════════════════════════════════════ */

/* ─── Section ────────────────────────── */
.playground-section {
  padding: 80px 0 100px;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(109,40,217,0.07) 0%, transparent 70%);
  border-top: 1px solid var(--c-border);
}

.playground-header {
  text-align: center;
  margin-bottom: 48px;
}
.playground-header .section-tag { margin-bottom: 14px; }
.playground-header .section-title { margin-bottom: 12px; font-size: clamp(1.8rem, 4vw, 2.6rem); }
.playground-header p { color: var(--c-text-2); font-size: 0.95rem; line-height: 1.7; max-width: 500px; margin: 0 auto; }

/* ─── IDE Window ─────────────────────── */
#playground {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(139,92,246,0.3);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.04),
    0 32px 80px rgba(0,0,0,0.55),
    0 0 80px rgba(109,40,217,0.12);
  display: flex;
  flex-direction: column;
  min-height: 520px;
  background: #070510;
}
[data-theme="light"] #playground {
  background: #f8f7ff;
  border-color: rgba(109,40,217,0.2);
  box-shadow: 0 8px 40px rgba(0,0,0,0.12), 0 0 40px rgba(109,40,217,0.08);
}

/* ─── Titlebar ───────────────────────── */
.pg-titlebar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: rgba(5,3,14,0.95);
  border-bottom: 1px solid rgba(139,92,246,0.12);
  flex-shrink: 0;
  user-select: none;
}
[data-theme="light"] .pg-titlebar {
  background: rgba(230,225,255,0.8);
  border-bottom-color: rgba(109,40,217,0.15);
}

.pg-dots { display: flex; gap: 7px; }
.pg-dot  { width: 12px; height: 12px; border-radius: 50%; }
.pg-dot--r { background: #ff5f57; }
.pg-dot--y { background: #febc2e; }
.pg-dot--g { background: #28c840; }

.pg-tabs { display: flex; gap: 4px; flex: 1; }

.pg-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 7px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-text-3);
  background: transparent;
  border: 1px solid transparent;
  transition: all var(--t-fast);
}
.pg-tab--active {
  background: rgba(139,92,246,0.12);
  border-color: rgba(139,92,246,0.2);
  color: var(--c-purple-light);
}

.pg-title-right { display: flex; align-items: center; gap: 8px; }

.pg-model-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--c-cyan);
  background: rgba(6,182,212,0.08);
  border: 1px solid rgba(6,182,212,0.2);
  padding: 3px 8px;
  border-radius: 5px;
}

/* ─── Main Layout ────────────────────── */
.pg-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  flex: 1;
  min-height: 0;
}

@media (max-width: 700px) {
  .pg-layout { grid-template-columns: 1fr; }
  .pg-sidebar { display: none; }
}

/* ─── Sidebar ────────────────────────── */
.pg-sidebar {
  border-right: 1px solid rgba(139,92,246,0.1);
  background: rgba(4,2,12,0.7);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
[data-theme="light"] .pg-sidebar {
  background: rgba(245,242,255,0.8);
  border-right-color: rgba(109,40,217,0.1);
}

.pg-sidebar-section {
  padding: 12px 0 4px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
[data-theme="light"] .pg-sidebar-section { border-bottom-color: rgba(0,0,0,0.06); }

.pg-sidebar-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-text-3);
  padding: 0 14px 8px;
}

/* File tree */
.pg-file-tree { display: flex; flex-direction: column; }
.pg-file-tree-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--c-text-2);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pg-file-tree-item:hover { background: rgba(139,92,246,0.08); color: var(--c-text); }
.pg-file-tree-dir { color: var(--c-text-3); cursor: default; }
.pg-file-tree-file:hover { color: var(--c-purple-light); }

/* Example buttons */
.pg-example-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 6px 14px;
  background: none;
  border: none;
  color: var(--c-text-2);
  font-size: 0.76rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--t-fast);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pg-example-btn:hover { background: rgba(139,92,246,0.08); color: var(--c-purple-light); }

/* Usage stats */
.pg-sidebar-stats {
  margin-top: auto;
  padding: 12px 14px;
  border-top: 1px solid rgba(255,255,255,0.04);
}
[data-theme="light"] .pg-sidebar-stats { border-top-color: rgba(0,0,0,0.06); }

.pg-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}
.pg-stat-label { font-size: 0.7rem; color: var(--c-text-3); font-family: var(--font-mono); }
.pg-stat-value { font-size: 0.7rem; color: var(--c-text-2); font-family: var(--font-mono); font-weight: 600; }

.pg-stat-bar {
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 8px;
}
[data-theme="light"] .pg-stat-bar { background: rgba(0,0,0,0.08); }

.pg-stat-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--c-purple), var(--c-cyan));
  transition: width 0.5s ease;
  border-radius: 999px;
}
.pg-stat-fill--full { background: linear-gradient(90deg, #f59e0b, #ef4444); }

.pg-unlock-link {
  background: none;
  border: none;
  color: var(--c-purple-light);
  font-size: 0.72rem;
  cursor: pointer;
  font-family: var(--font-sans);
  padding: 0;
  transition: opacity var(--t-fast);
}
.pg-unlock-link:hover { opacity: 0.7; }

/* ─── Main panel ─────────────────────── */
.pg-main {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

/* ─── Editor ─────────────────────────── */
.pg-editor-wrap {
  border-bottom: 1px solid rgba(139,92,246,0.1);
  flex-shrink: 0;
}

.pg-editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: rgba(5,3,14,0.5);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
[data-theme="light"] .pg-editor-header { background: rgba(240,237,255,0.6); border-bottom-color: rgba(0,0,0,0.06); }

.pg-editor-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-text-3);
}

.pg-token-count {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--c-text-3);
}
.pg-token-count--over { color: #f87171; }

#pg-form { display: flex; flex-direction: column; }

.pg-editor {
  width: 100%;
  min-height: 130px;
  max-height: 280px;
  padding: 14px 18px;
  background: rgba(5,3,14,0.4);
  border: none;
  outline: none;
  color: #e2e8f0;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.7;
  resize: none;
  caret-color: #a78bfa;
  box-sizing: border-box;
}
[data-theme="light"] .pg-editor {
  background: rgba(248,246,255,0.8);
  color: #1e1b4b;
  caret-color: #7c3aed;
}
.pg-editor::placeholder { color: #334155; opacity: 0.6; }
[data-theme="light"] .pg-editor::placeholder { color: #8b8ab8; }

.pg-editor-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: rgba(5,3,14,0.5);
  border-top: 1px solid rgba(255,255,255,0.04);
  flex-wrap: wrap;
  gap: 8px;
}
[data-theme="light"] .pg-editor-footer { background: rgba(235,231,255,0.6); border-top-color: rgba(0,0,0,0.06); }

.pg-shortcut {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--c-text-3);
}

.pg-editor-actions { display: flex; gap: 8px; align-items: center; }

.pg-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--c-border);
  font-size: 0.8rem;
  font-family: var(--font-sans);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--t-fast);
}

.pg-btn--ghost {
  background: transparent;
  color: var(--c-text-2);
}
.pg-btn--ghost:hover {
  background: rgba(255,255,255,0.06);
  color: var(--c-text);
}

.pg-btn--primary {
  background: linear-gradient(135deg, var(--c-purple), #6366f1);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 2px 16px rgba(109,40,217,0.3);
}
.pg-btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 24px rgba(109,40,217,0.45);
}
.pg-btn--primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Spinner */
.pg-spinner {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.85);
}
.pg-spin-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: pg-pulse 0.9s ease-in-out infinite alternate;
}
@keyframes pg-pulse {
  from { opacity: 0.3; transform: scale(0.8); }
  to   { opacity: 1;   transform: scale(1.1); }
}

/* ─── Response ───────────────────────── */
.pg-response-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 200px;
  overflow: hidden;
}

.pg-response-header {
  display: flex;
  align-items: center;
  padding: 8px 16px;
  background: rgba(5,3,14,0.4);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  flex-shrink: 0;
}
[data-theme="light"] .pg-response-header { background: rgba(240,237,255,0.6); border-bottom-color: rgba(0,0,0,0.06); }

.pg-response-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-cyan);
}

/* Placeholder */
.pg-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex: 1;
  padding: 32px;
  color: var(--c-text-3);
  text-align: center;
}
.pg-placeholder-icon { font-size: 2.5rem; }
.pg-placeholder p { font-size: 0.85rem; line-height: 1.7; margin: 0; }
.pg-hidden { display: none; }

/* Response content */
.pg-response {
  flex: 1;
  padding: 18px 20px;
  overflow-y: auto;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--c-text-2);
  background: rgba(5,3,14,0.25);
}
[data-theme="light"] .pg-response { background: rgba(248,246,255,0.5); color: #2d2a5e; }
.pg-response--hidden { display: none; }

.pg-response::-webkit-scrollbar { width: 4px; }
.pg-response::-webkit-scrollbar-track { background: transparent; }
.pg-response::-webkit-scrollbar-thumb { background: rgba(139,92,246,0.3); border-radius: 999px; }

/* Typing cursor */
.pg-typing-cursor {
  color: #a78bfa;
  animation: blink 0.8s step-end infinite;
  margin-left: 1px;
}
@keyframes blink { 50% { opacity: 0; } }

/* Response markdown styles */
.pg-response h1, .pg-response h2, .pg-response h3 {
  color: var(--c-text);
  font-weight: 700;
  margin: 1.2rem 0 0.5rem;
  line-height: 1.3;
}
.pg-response h1 { font-size: 1.2rem; }
.pg-response h2 { font-size: 1rem; }
.pg-response h3 { font-size: 0.92rem; }

.pg-response ul { padding-left: 18px; margin: 0.5rem 0; }
.pg-response li { margin-bottom: 4px; }

.pg-response strong { color: var(--c-text); font-weight: 700; }
.pg-response em { font-style: italic; color: var(--c-text); }

.pg-code-block {
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(139,92,246,0.15);
  border-radius: 8px;
  padding: 14px 16px;
  margin: 10px 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  color: #e2e8f0;
}
[data-theme="light"] .pg-code-block {
  background: rgba(40,30,80,0.06);
  border-color: rgba(109,40,217,0.12);
  color: #1e1b4b;
}

.pg-inline-code {
  background: rgba(139,92,246,0.1);
  border: 1px solid rgba(139,92,246,0.2);
  border-radius: 4px;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 0.82em;
  color: var(--c-purple-light);
}

/* Status messages */
.pg-ok    { color: #4ade80; }
.pg-error { color: #f87171; }
.pg-warn  { color: #fbbf24; }
.pg-dim   { color: #64748b; }

/* Coming soon */
.pg-coming-soon {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: center;
  padding: 24px;
  color: var(--c-text-2);
  font-size: 0.88rem;
  line-height: 1.7;
}
.pg-cs-icon { font-size: 2rem; }
.pg-coming-soon a { color: var(--c-purple-light); }

/* ─── Statusbar ──────────────────────── */
.pg-statusbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  background: rgba(109,40,217,0.12);
  border-top: 1px solid rgba(139,92,246,0.15);
  flex-shrink: 0;
}
[data-theme="light"] .pg-statusbar {
  background: rgba(109,40,217,0.07);
  border-top-color: rgba(109,40,217,0.12);
}

.pg-status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.pg-status-dot--green { background: #4ade80; box-shadow: 0 0 6px #4ade80; }
.pg-status-dot--yellow { background: #fbbf24; }
.pg-status-dot--red { background: #f87171; }

.pg-status-text { font-family: var(--font-mono); font-size: 0.7rem; color: var(--c-text-3); }
.pg-status-sep  { color: var(--c-border); font-size: 0.7rem; }

/* ─── Modal ──────────────────────────── */
.pg-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.pg-modal-overlay.pg-modal--show {
  opacity: 1;
  pointer-events: all;
}
.pg-modal-box {
  background: rgba(14,8,28,0.98);
  border: 1px solid rgba(139,92,246,0.35);
  border-radius: 20px;
  padding: 40px 36px;
  max-width: 420px;
  width: 90%;
  text-align: center;
  box-shadow: 0 0 80px rgba(109,40,217,0.25), 0 32px 80px rgba(0,0,0,0.6);
  transform: scale(0.95) translateY(8px);
  transition: transform 0.35s cubic-bezier(0.34,1.56,0.64,1);
}
.pg-modal--show .pg-modal-box { transform: scale(1) translateY(0); }
[data-theme="light"] .pg-modal-box {
  background: rgba(255,255,255,0.98);
  border-color: rgba(109,40,217,0.2);
}
.pg-modal-icon { font-size: 2.5rem; margin-bottom: 16px; }
.pg-modal-title { font-size: 1.3rem; font-weight: 700; color: var(--c-text); margin-bottom: 10px; }
.pg-modal-desc { font-size: 0.88rem; color: var(--c-text-2); line-height: 1.6; margin-bottom: 24px; }
.pg-modal-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--c-border-2);
  background: rgba(139,92,246,0.04);
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  outline: none;
  margin-bottom: 14px;
  box-sizing: border-box;
  transition: border-color var(--t-fast);
}
.pg-modal-input:focus { border-color: var(--c-purple-light); }
.pg-modal-input--err  { border-color: #f87171; }
.pg-modal-btn {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(135deg, var(--c-purple), var(--c-cyan));
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  font-family: var(--font-sans);
  cursor: pointer;
  margin-bottom: 10px;
  transition: all var(--t-fast);
  box-shadow: 0 4px 20px rgba(109,40,217,0.35);
}
.pg-modal-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 28px rgba(109,40,217,0.5); }
.pg-modal-close {
  background: none;
  border: none;
  color: var(--c-text-3);
  font-size: 0.82rem;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: color var(--t-fast);
}
.pg-modal-close:hover { color: var(--c-text-2); }